Sendenv

Sendenv is a secure, end-to-end encrypted service for sharing sensitive information. Perfect for sharing environment variables, API keys, or other secrets securely.

How it Works

1. Your secret is encrypted in your browser using AES-GCM encryption
2. Only the encrypted data is sent to our server
3. A unique link is generated containing the decryption key
4. The decryption key is never sent to our server
5. Links expire after 1 hour and can only be used once

Security Features

• End-to-end encryption using AES-GCM
• 256-bit encryption keys
• Keys are generated using the Web Crypto API
• Encryption/decryption happens entirely in your browser
• Server never sees unencrypted data
• One-time use links
• 1-hour expiration
• No data retention after expiration

Technical Details

• Built with SvelteKit
• Uses Web Crypto API for cryptographic operations
• MySQL database (with Drizzle ORM)
• URLs are structured as sendenv.app/s/{id}#{key}
  • id: Identifies the encrypted content
  • key: Encryption key (only in URL fragment, never sent to server)

Development

# Install dependencies
bun install

# Start development server
bun dev

# Build for production
npm run build

Contributing

Contributions are welcome! Please feel free to submit a Pull Request.

License

MIT License